Home / 7,999.35-11,036.64-5,168.30

Finding the Fourth Proportional to 7,999.35, 11,036.64 and 5,168.30

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Solution

The fourth proportional to 7,999.35, 11,036.64 and 5,168.30 is: 7,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.35 : 11,036.64 = 5,168.30 : x
  2. Step 2: Convert to fraction form
    7,999.35/11,036.64 = 5,168.30/x
  3. Step 3: Cross multiply
    7,999.35x = 11,036.64 × 5,168.30
  4. Step 4: Simplify right side
    7,999.35x = 57,040,640.67
  5. Step 5: Solve for x
    x = 57,040,640.67/7,999.35
  6. Step 6: Final answer
    x = 7,130.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.